Home / 49,485.31-74,228.11-12,045.39

Finding the Fourth Proportional to 49,485.31, 74,228.11 and 12,045.39

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Solution

The fourth proportional to 49,485.31, 74,228.11 and 12,045.39 is: 18,068.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,485.31 : 74,228.11 = 12,045.39 : x
  2. Step 2: Convert to fraction form
    49,485.31/74,228.11 = 12,045.39/x
  3. Step 3: Cross multiply
    49,485.31x = 74,228.11 × 12,045.39
  4. Step 4: Simplify right side
    49,485.31x = 894,106,533.91
  5. Step 5: Solve for x
    x = 894,106,533.91/49,485.31
  6. Step 6: Final answer
    x = 18,068.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.